Calcite - NS2059B.02

Crystal system	hexagonal.
Habit	tabular, granular, stalactitic or prismatic; rhombohedral or scalenohedral in geometric form.
Cleavage	perfect.
Fracture	rarely present but is conchoidal (long curved surface pattern often seen when glass breaks).
Hardness	3
Specific Gravity	2.7
Color	can be colorless, opaque, white, gray, yellow, green, purple, blue/brown or black.
Luster	transparent to translucent with a vitreous or pearly luster
Streak	white.
Distinguishing features	dissolves easily in cold, hydrochloric acid.
Uses	used in petrological microscopes as a polarizing prism; also used in cements for buildings, as a flux in metallurgy, in soil enrichment and as fillers in rubber and paint.

Color

Catalog